试题详情

CRH3A型动车组停放制动监控受干扰 (故障代码: 500B),停车后,司机重新按下停放制动( )按钮并保持至少( ),等待( ),再进行下一步操作。

A施加,10s,20s

B施加,3s,20s

C缓解,3s,20s

D缓解,10s,20s